#include"mystdio.h"
#include"mymath.h"
#include<stdio.h>
int main()
{
    int ret = Add(10,20);
    printf("%d+%d  = %d \n",10,20,ret);

    myFILE* fp =  my_fopen("log.txt","w");
    if(fp==NULL) return  1;
    return 0;
}
